Jon Talks about Human Induced Seismisity

Geothermal Exploration Screening - Richard Thompson
An overview of RT’s geothermal Screening Tool & Exploration dashboard.

Anne Murrell and Dr Charlotte Adams, Directors of the UK National Geothermal Centre, speak about plans for the centre and the UK’s geothermal resource.

Potentials of hydrogen production from geothermal heat and wellbore conditions.

Improving overall resource efficiency enhances energy security. Biogas is an important asset within waste management, transforming a range of organic wastes into a higher-value product. By creating integrated partnerships, sector coupling highlights the synergies of Geothermal Energy, District Heating, Industry-CO2, and Agriculture. This allows the circular green economy to be developed at scale with enhanced geothermal power systems. Improving geothermal energy commerciality enables development of marginal projects, accelerating sector expansion. Here I present a novel geothermal methodology for the gasification of biogas to generate hydrogen with carbon capture and storage (CCS). The methodology is referred to as Carbon Injection and Gasification Geothermal (CIGG). The CIGG process eliminates the process steps to upgrade biogas to biomethane, saving process energy, costs, and materials. To capture this synergy, the natural geo-pressure from a geothermal reservoir, together with the elevated temperature of the associated formation fluid (hereafter power fluid) are used. This analysis has been supported by chemical reactions simulation covering energy and mass balance. The immediate, in-situ, downhole capture of CO2 will also enable improved geothermal power efficiencies from the CO2 partially recirculated within the power fluid. The elevated temperature of the wellbore gasification tool will reduce the temperature depletion of the formation caused by geothermal power fluids. With geothermal wells having an expected life span of 15-25 years this synergy could enhance energy security for the long term. A technoeconomic analysis was performed to estimate the cost of hydrogen generation. Estimates show that with a biogas delivery of 4 MMSCFD (with 50% CO2 content), from to 4-5 medium-high volume biomass Anaerobic Digestion plants (each generating 0.8-1.0 MMSCFD of biogas), it is possible to generate hydrogen at around 3 USD per kg from feeding 2 geothermal wells.